These metal, hexagonal standoffs are great for mounting PCBs to your chassis or to separate multiple levels of decks in your robot. Each standoff is 1.25" long by 0.25" wide, and the threads extend another
3/16" past the standoff. You can easily screw multiple units together to make longer standoffs, as shown to the right. The threads are 4-40 on both ends. Eight units are included in one set.